By default, the Domain ID of each OSPF process running on the router is the same as the process number of the process, which can be modified by the domain-id command under the process

To prevent hackers from attacking user devices or networks through MA, C addresses, you can configure the MA, C addresses of untrusted users as black hole MA, C addresses to filter out illegal MA, C addresses.

Match the alarm severity to the severity of the fault and countermeasures

What is the meaning of the display current-configuration I include vlan command?

Regarding BGP/MPLS IPVPN routing interaction, which of the following description is wrong?